The history of my name starts with when I played FFXI. I tried coming up with something with 'frag' in the name that sounded vaguely medieval. Eventually I came up with 'Fragimer,' which I continued to use for years, taking the name with me to WoW and other games.
After a few years, though, I grew a bit tired of the name since I'd had it for a while and wasn't completely satisfied with it (although looking back now, Fragimer's actually not a bad name, so I may use it some more). I tried coming up with something that included the word 'frag' (since I got used to be being called 'Frag' for short) and, ideally, started with the letter 'n' (my first name is Nick, like Sunderland actually). I was also hoping to include something spanish-y sounding, since I'm half-mexican (but in looks and upbringing, I'm basically a suburban white male). Lucky for me, during a spanish class in high school, I was just sort of flipping through the 'N' section of a spanish-english dictionary when I spotted the word 'náufrago'. It was perfect for me!
náufrago- shipwrecked person, castaway.
I didn't change the names of any of my existing characters, but pretty much all of my online names since finding 'naufrago' have been some variation of that word. It also helped that it's a fun pun for several of the games I played or play (EVE online, GOIO).
So yeah, if you see me around, feel free to call me 'Frag' or 'Frago'. It's what I'm most used to. I do respond to people calling me 'Nau', but it's not preferred. I also tend to not capitalize my name. No particular reason, I just prefer it that way.
EDIT: I should note that it's actually kinda hard to get the name 'naufrago' sometimes, since some spanish-speaking folks like that name too. Guess it should be kinda expected when you use a word out of a dictionary as your username.